Trolley-wheel.



J. S RANDOLPH. TEOLLEY WHEEL.

APPLIGATION FILED .TANJB, 1913.

1,078,643, PatentedNov. 18, 1913.

inventor COLUMDIAIPLANOGRAPH,CEL, WASHINGTON, n c.

Attorneys tirr JOSEPH SCOTT RANDOLPH, GLENGOE, OHIO.

TROLLEY-WHEEL.

Specification of Letters Patent.

Patented Nov. 18,1913.

' Application filed January 16, 1913. Serial No. 742,511.

. To all whom, it may concern:

Be it known that I, J OSEPH S. RANDOLPH, a citizen of the United States,residing at Glencoe, in the county of Belmont and State of Ohio, haveinvented a new and useful Trolley-Wheel, of which the following is aspecification.

The present invention aims to provide novel means for holding a trolleywire upon a trolley wheel.

The invention aims, further, to provide novel means whereby the holdingmechanism may be moved, to permit the trolley wheel to be shifted.

Another object of the invention is to provide novel means forcontrolling the movement of one of the elements which serves to hold thetrolley wheel in contact with the conducting wire.

It is within the scope of the invention to improve generally and toincrease the utility of devices of that type to which the presentinvention appertains.

With the foregoing and other objects in view which will appear as thedescription proceeds the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawings :Figure 1 shows the invention in side elevation; Fig. 2is an end elevation; and Fig. 3 is a top plan.

In carrying out the invention there is provided a support comprising aU-shaped 'frame 1, connected as shown at 2 with the trolley pole 3. Theframe 1 includes arms 4 and 5.

Mounted in the frame 1 adjacent the upper end thereof, is an axle 6supporting the rotatable trolley wheel 7. A pin 8 extends through theaxle 6 and constitutes a fulcrum for a lever 9, the upper end of whichis loosely mounted on the axle 6. At its lower end, the lever 9 isequipped with a head 10 fitting loosely upon a support, preferablytaking the form of a rod, the support, indicated by the numeral 11,being terminally connected with the arms 4 and 5 of the frame 1.

A compression spring 12 surrounds the axle 6 andbears against the lever9, one end of the spring 12 abutting against the arm 5. A compressionspring 1 1 is connected with the arm 5 and bears against the lever 9.Another compression spring 15 surrounds the support 11, the spring 15abutting at one end against the arm 1 and at its other end abuttingagainst the head 10 of the lever 9. The springs 14 and 15 serve tosupport the lever 9 yieldably upon the member 10, in the position shownin Fig. 2. The spring 12 serves to press the lever 9 against the fulcrumpin 8.

A fixed jaw 16 is carried by the upper end of the arm 4 and a movablejaw 17 is carried by the upper end of the lever 9. The jaws 16 and 17are of loop shape and overhang the tread of the trolley wheel 7 so as tohold the conductor therein, when the parts are positioned as shown inFig. 2.

Supporting elements 18 are mounted in the edges of the lever 9 and ofthe arm 4, the supporting elements engaging the ends of the loop shaped,converging jaws 16 and 17. I

The arm 4 is provided with outstanding ears 19 supporting a shaft 20,carrying a drum 21. A pair of flexible elements 22 are trained about thedrum 21, the free ends of the flexible elements 22 extending downwardly,and the flexible elements, at one end, each being connected with thehead 10 of the lever 9.

When the parts are positioned as shown in Fig. 2, the jaws 16 and 17will, under the action of the springs 12, 14 and 15, remain inoverhanging relation with respect to the tread of the trolley wheel 7,and thus, the conductor will be held in the tread of the trolley wheel.When it is desired to disengage the trolley wheel from the conductor,the flexible elements 22 may be drawn upon, sliding the lever 9 upon thesupport 11 and putting the spring 15 under tension. When the lever 9slides on the support 11, the pin 8 which is carried by the axle 6 willconstitute a fulcrum, and the lever will tilt, thereby swinging themovable jaw 17 to one side of the trolley wheel, so that the trolleywheel may be disengaged readily from the conductor. When the tensionupon the flexible elements 22 is released, the springs will co-act torestore the parts to the positions shown in Fig. 2.

Having thus described the invention, hat is claimed is:-- V

I In a device of the class described, a support; a trolley wheeljournaled on the su p port," a lever fulcrtimed upon the support andprovided with a jaw overhanging the the jaw laterally with respect tothe trolley heel, against the action of one of said resil ent means.

In test; I ony thatI claim the foregoing as my own, I 'have heretoafiixed my signature in the presence of two Witnesses.

JOSEPH SCOTT RANDOLPH. Witnesses: 7 j 7 JAMES DFMELLOTT,

Mannorr.

